Celery: Distributed Task Queue Celery is an asynchronous task queue/job queue based on distributed message passing. It is focused on real-time operation, but supports scheduling as well. The execution units, called tasks, are executed concurrently on a single or more worker servers using multiprocessing, Eventlet, or gevent. Tasks can execute asynchronously (in the background) or synchronously (wait until ready).
RabbitMQ is a messaging broker - an intermediary for messaging. It gives your applications a common platform to send and receive messages, and your messages a safe place to live until received.
没能看明白之间的区别。求点
以我浅薄的理解来回答一下。
Celery和RabbitMQ是两个层面的东西。
Celery是一个分布式的任务队列。它的基本工作就是管理分配任务到不同的服务器，并且取得结果。至于说服务器之间是如何进行通信的？这个Celery本身不能解决。
所以，RabbitMQ作为一个消息队列管理工具被引入到和Celery集成，负责处理服务器之间的通信任务。
当然，后来Celery相继增加了一些对Redis,MongoDB之类的支持。原因是RabbitMQ尽管足够强大，但对于一些相对简单的业务环境来说可能太多（复杂）了一些。这样用户可以有多一些的选择。